SUSE-SU-2019:0921-1: important: Security update for xen
sle-security-updates at lists.suse.com
sle-security-updates at lists.suse.com
Wed Apr 10 07:09:09 MDT 2019
SUSE Security Update: Security update for xen
______________________________________________________________________________
Announcement ID: SUSE-SU-2019:0921-1
Rating: important
References: #1026236 #1114988 #1123157 #1126140 #1126141
#1126192 #1126195 #1126196 #1126198 #1126201
#1127400 #1129623
Cross-References: CVE-2018-19967 CVE-2019-6778 CVE-2019-9824
Affected Products:
SUSE OpenStack Cloud 7
SUSE Linux Enterprise Server for SAP 12-SP2
SUSE Linux Enterprise Server 12-SP2-LTSS
SUSE Linux Enterprise Server 12-SP2-BCL
SUSE Enterprise Storage 4
______________________________________________________________________________
An update that solves three vulnerabilities and has 9 fixes
is now available.
Description:
This update for xen fixes the following issues:
Security issues fixed:
- Fixed an issue which could allow malicious PV guests may cause a host
crash or gain access to data pertaining to other guests.Additionally,
vulnerable configurations are likely to be unstable even in the absence
of an attack (bsc#1126198).
- Fixed multiple access violations introduced by XENMEM_exchange hypercall
which could allow a single PV guest to leak arbitrary amounts of memory,
leading to a denial of service (bsc#1126192).
- Fixed an issue which could allow a malicious unprivileged guest
userspace process to escalate its privilege to that of other userspace
processes in the same guest and potentially thereby to that
of the guest operating system (bsc#1126201).
- Fixed an issue which could allow a malicious or buggy x86 PV guest
kernels can mount a Denial of Service attack affecting the whole system
(bsc#1126196).
- Fixed an issue which could allow an untrusted PV domain with access to a
physical device to DMA into its own pagetables leading to privilege
escalation (bsc#1126195).
- CVE-2019-6778: Fixed a heap buffer overflow in tcp_emu() found in slirp
(bsc#1123157).
- Fixed an issue which could allow malicious 64bit PV guests to cause a
host crash (bsc#1127400).
- Fixed an issue which could allow malicious or buggy guests with passed
through PCI devices to be able to escalate their privileges, crash the
host, or access data belonging to other guests. Additionally memory
leaks were also possible (bsc#1126140).
- Fixed a race condition issue which could allow malicious PV guests to
escalate their privilege to that
of the hypervisor (bsc#1126141).
- CVE-2019-9824: Fixed an information leak in SLiRP networking
implementation which could allow a user/process to read uninitialised
stack memory contents (bsc#1129623).
- CVE-2018-19967: Fixed HLE constructs that allowed guests to lock up the
host, resulting in a Denial of Service (DoS). (XSA-282) (bsc#1114988)
Other issue addressed:
- Added Xen cmdline option "suse_vtsc_tolerance" to avoid TSC emulation
for HVM domUs (bsc#1026236).
Patch Instructions:
To install this SUSE Security Update use the SUSE recommended installation methods
like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:
- SUSE OpenStack Cloud 7:
zypper in -t patch SUSE-OpenStack-Cloud-7-2019-921=1
- SUSE Linux Enterprise Server for SAP 12-SP2:
zypper in -t patch SUSE-SLE-SAP-12-SP2-2019-921=1
- SUSE Linux Enterprise Server 12-SP2-LTSS:
zypper in -t patch SUSE-SLE-SERVER-12-SP2-2019-921=1
- SUSE Linux Enterprise Server 12-SP2-BCL:
zypper in -t patch SUSE-SLE-SERVER-12-SP2-BCL-2019-921=1
- SUSE Enterprise Storage 4:
zypper in -t patch SUSE-Storage-4-2019-921=1
Package List:
- SUSE OpenStack Cloud 7 (x86_64):
xen-4.7.6_06-43.48.1
xen-debugsource-4.7.6_06-43.48.1
xen-doc-html-4.7.6_06-43.48.1
xen-libs-32bit-4.7.6_06-43.48.1
xen-libs-4.7.6_06-43.48.1
xen-libs-debuginfo-32bit-4.7.6_06-43.48.1
xen-libs-debuginfo-4.7.6_06-43.48.1
xen-tools-4.7.6_06-43.48.1
xen-tools-debuginfo-4.7.6_06-43.48.1
xen-tools-domU-4.7.6_06-43.48.1
xen-tools-domU-debuginfo-4.7.6_06-43.48.1
- SUSE Linux Enterprise Server for SAP 12-SP2 (x86_64):
xen-4.7.6_06-43.48.1
xen-debugsource-4.7.6_06-43.48.1
xen-doc-html-4.7.6_06-43.48.1
xen-libs-32bit-4.7.6_06-43.48.1
xen-libs-4.7.6_06-43.48.1
xen-libs-debuginfo-32bit-4.7.6_06-43.48.1
xen-libs-debuginfo-4.7.6_06-43.48.1
xen-tools-4.7.6_06-43.48.1
xen-tools-debuginfo-4.7.6_06-43.48.1
xen-tools-domU-4.7.6_06-43.48.1
xen-tools-domU-debuginfo-4.7.6_06-43.48.1
- SUSE Linux Enterprise Server 12-SP2-LTSS (x86_64):
xen-4.7.6_06-43.48.1
xen-debugsource-4.7.6_06-43.48.1
xen-doc-html-4.7.6_06-43.48.1
xen-libs-32bit-4.7.6_06-43.48.1
xen-libs-4.7.6_06-43.48.1
xen-libs-debuginfo-32bit-4.7.6_06-43.48.1
xen-libs-debuginfo-4.7.6_06-43.48.1
xen-tools-4.7.6_06-43.48.1
xen-tools-debuginfo-4.7.6_06-43.48.1
xen-tools-domU-4.7.6_06-43.48.1
xen-tools-domU-debuginfo-4.7.6_06-43.48.1
- SUSE Linux Enterprise Server 12-SP2-BCL (x86_64):
xen-4.7.6_06-43.48.1
xen-debugsource-4.7.6_06-43.48.1
xen-doc-html-4.7.6_06-43.48.1
xen-libs-32bit-4.7.6_06-43.48.1
xen-libs-4.7.6_06-43.48.1
xen-libs-debuginfo-32bit-4.7.6_06-43.48.1
xen-libs-debuginfo-4.7.6_06-43.48.1
xen-tools-4.7.6_06-43.48.1
xen-tools-debuginfo-4.7.6_06-43.48.1
xen-tools-domU-4.7.6_06-43.48.1
xen-tools-domU-debuginfo-4.7.6_06-43.48.1
- SUSE Enterprise Storage 4 (x86_64):
xen-4.7.6_06-43.48.1
xen-debugsource-4.7.6_06-43.48.1
xen-doc-html-4.7.6_06-43.48.1
xen-libs-32bit-4.7.6_06-43.48.1
xen-libs-4.7.6_06-43.48.1
xen-libs-debuginfo-32bit-4.7.6_06-43.48.1
xen-libs-debuginfo-4.7.6_06-43.48.1
xen-tools-4.7.6_06-43.48.1
xen-tools-debuginfo-4.7.6_06-43.48.1
xen-tools-domU-4.7.6_06-43.48.1
xen-tools-domU-debuginfo-4.7.6_06-43.48.1
References:
https://www.suse.com/security/cve/CVE-2018-19967.html
https://www.suse.com/security/cve/CVE-2019-6778.html
https://www.suse.com/security/cve/CVE-2019-9824.html
https://bugzilla.suse.com/1026236
https://bugzilla.suse.com/1114988
https://bugzilla.suse.com/1123157
https://bugzilla.suse.com/1126140
https://bugzilla.suse.com/1126141
https://bugzilla.suse.com/1126192
https://bugzilla.suse.com/1126195
https://bugzilla.suse.com/1126196
https://bugzilla.suse.com/1126198
https://bugzilla.suse.com/1126201
https://bugzilla.suse.com/1127400
https://bugzilla.suse.com/1129623
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